SONY WMFS473
Instrukcja Serwisowa

WM-FS473

5-5. SCHEMATIC DIAGRAM (DISPLAY SECTION)

r

WAVEFORM

1
SUB

1.1Vp-p

75kHz 13.6µsec

IC701 %�

VOLT/DIV : 0.2V AC TIME/DIV : 5 µsec

r

IC BLOCK DIAGRAM
OUT GND VCC

IC702 PST9018NL

5

4

+
OP1 CO1

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+ �

1
NC

2

3

Note: � All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. � All resistors are in � and 1/4 W or less unless otherwise � � � � � specified. C : panel designation. U : B+ Line. Power voltage is dc 3 V and fed with regulated dc power supply from battery terminal. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. Voltages and waveforms are dc with respect to ground in playback mode. no mark : FM (RADIO SECTION) PLAY (TAPE SECTION) ( ) : AM Voltages are taken with a VOM (Input impedance 10 M�). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. Circled numbers refer to waveforms.

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� 18 �

� 19 �

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